RansomwareRemoval Guide

Remove Coom Virus (+Decrypt .coom files)

Coom – Ransomware

The Coom stands for a ransomware-type infection. Coom was elaborated particularly to encrypt all major file types. As soon as the file is encrypted people are unable to use them. Coom adds the “.coom” extension for each file encrypted by it. For example, the file “myphoto.jpg“, as soon as encrypted by Coom, will be renamed into “myphoto.jpg.coom“. As quickly as the encryption is completed, Coom places a special text file into every folder containing the encrypted data.

The message given by Coom text file asking for the ransom is absolutely the like the statements given by other ransomware representatives. It actually discusses that the information is encrypted and that the only way to restore it is to use a an unique decryption key. Unfortunately, this is definitely true. The sort of cryptography mechanism used by Coom is still not appropriately examined. Still, it is absolutely particular that each victim might be given the specific decryption key, which is completely unique. It is impossible to restore the files without the key available.

Another technique of Coom is that the victims cannot gain access to the key. The key is kept on a particular server run by the frauds connected with Coom ransomware. To get the key and recover the important info people have to pay the ransom.

Nevertheless, regardless of the requested quantity, people must stay away from paying the ransom. Cyber frauds are not fair, so they tend to completely ignore what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom normally does not give any positive outcome and people simply waste their money for absolutely nothing.

We highly encourage that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Coom ransomware and to recover the information data free of charge. Therefore, the only best decision is to recover the lost information from the available backup.

Virus Summary

NameCoom Ransomware
File Extension.coom
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special coom extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Keep in mind that the web is now overwhelmed with threats that look similar to Coom ransomware. Malicious programs of such kind are normally elaborated to encrypt important data and to state the demand prior to the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a comparable algorithm to generate the distinct decryption key for data decryption.

Therefore, as long as the ransomware is still being developed or has some hidden bugs, by hand recovering the information is just not feasible. The only way to prevent the loss of your essential data is to regularly create backups of your important information.

Remember that even if you create such backups, they should be placed into a special storage utility not connect to your main computer. You may use the USB Memory Stick or external hard disk drive for this purpose, or refer to the help of the cloud storage. If you store your backup files on your common system they may be encrypted together with other files, so it’s absolutely not a good storage location.

How did ransomware infect my PC?

There are a number of methods used by online scams to distribute Coom ransom virus. Although it doubts how exactly Coom injects your PC, there are some leaks through which it may penetrate the system:

  • integration with third-party software application, especially freeware;
  • spam emails from unknown senders;
  • sites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Often Coom ransomware may be presented as some legitimate software, for example, in the pop-ups advising users to implement some important software updates. This is the common trick used by online frauds to persuade people into downloading and installing Coom infection manually, by means of their direct participation in the installation process.

In addition, the criminals may refer to different e-mail spam methods to inject harmful codes into systems. So, they may refer to to sending unsolicited spam emails with tricky notifications promoting users to download the attachments or click on certain download links, for example, the ones encouraging users to open some photos, files, tax reports or invoices.

Needless to mention, opening such documents or clicking on such dangerous links may severely harm the system. Fictitious Adobe Flash Player update alerts may result in Coom virus injection. As for the cracked applications, these illegally downloaded programs may also consist of destructive codes causing Coom secret installation. Lastly, injection of Coom may take place by means of Trojans that covertly get injected into the system and install malicious tools without the user’s authorization.

Is there any method to avoid the injection of Coom ransomware?

Although there is no 100% guarantee to prevent your system from getting infected, there are some pieces of suggestions we wish to show with you. First of all, be really mindful when you surf the web and specifically while downloading totally free apps. Stay away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Keep in mind that some freeware installers may consist of other unwanted utilities in the bundle, so they may be malicious. Ensure that your current anti-virus and your entire OS is always appropriately updated.

Naturally, downloading pirated software is unlawful and may result in necessary damage to be produced your PC. For this reason, stay away from downloading cracked software. You are also highly encouraged to reconsider your existing security software and possibly change to another security solution that can render far better services of defending your system.

Below please find the quotation from the Coom text file:

Your USERID is ***
To unlock your files send 0.015 BTC (about $150 USD) to the following
bitcoin wallet address:
Once you have sent the bitcoin, make note of your USERID above and the
transaction id of your bitcoin payment and go to hxxp://
and you will be able to get your decryption key and the decryption tool.
If you are wondering how to purchase bitcoin easily, using paxful.com
with store bought gift cards is quick and easy, but there are many other ways
to buy bitcoin as well.

Screenshot of files with “.coom” extension added by the ransomware:
Coom Ransomware - encrypt files with .coom extension

Use GridinSoft Anti-Malware to remove Coom ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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